Self-Interference Signal Path Characterization in Full-Duplex Transceivers Using Built-in Self-Test

Debatrayee Roychowdhury, Soroush Moallemi, Sule Ozev, Jennifer Kitchen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


This paper proposes a built-in self-test (BIST) method to measure the amplitude and phase shift characteristics of the RF signal path from the transmitter to receiver in a full-duplex system. With this information, the self-interference signal (SI) may be canceled in the RF domain of a full duplex, or simultaneous transmit and receive (STAR) topology. Analysis and simulation results are presented for a 2.4GHz signal with 200MHz bandwidth, and a prototype of the BIST technique has been measured at 800MHz. The average error in phase and gain between the BIST estimated value and actual RF measured value are 0.95% and 1.43%, respectively, which supports the ability to provide 48dB of SI signal cancellation (SIC).

Original languageEnglish (US)
Title of host publicationRWW 2020 - 2020 IEEE Radio and Wireless Symposium
PublisherIEEE Computer Society
Number of pages4
ISBN (Electronic)9781728111209
StatePublished - Jan 2020
Event2020 IEEE Radio and Wireless Symposium, RWW 2020 - San Antonio, United States
Duration: Jan 26 2020Jan 29 2020

Publication series

NameIEEE Radio and Wireless Symposium, RWS
ISSN (Print)2164-2958
ISSN (Electronic)2164-2974


Conference2020 IEEE Radio and Wireless Symposium, RWW 2020
Country/TerritoryUnited States
CitySan Antonio


  • Built-in Self-test
  • Full-Duplex
  • Self Interference Cancelation
  • Transceivers

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Communication


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